Published April 1, 2009 | Version v1
Journal article

Connected parts of decuplet electromagnetic properties

  • 1. Maryland Center for Fundamental Physics, Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)

Description

We determine the electromagnetic properties of decuplet resonances using chiral perturbation theory at next-to-leading order. Utilizing a partially quenched charge matrix, we isolate and remove the quark disconnected contractions. This allows us to compare the physical meson loop contributions to the connected contributions, of which the latter are currently calculated using lattice QCD. Finally we determine linear combinations of decuplet resonance and hyperon electromagnetic properties that are exactly independent of disconnected contractions in the isospin limit.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
79
Journal Issue
7
Journal Page Range
p. 077501-077501.4
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41052163
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CHIRALITY; COMPARATIVE EVALUATIONS; CONTRACTION; HYPERONS; ISOSPIN; MESONS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARKS; RESONANCE
Descriptors DEC
BARYONS; BOSONS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; FIELD THEORIES; HADRONS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; STRANGE PARTICLES

Optional Information

Notes
(c) 2009 The American Physical Society